CN217639858U

CN217639858U - Display device

Info

Publication number: CN217639858U
Application number: CN202220996434.1U
Authority: CN
Inventors: 曹骏
Original assignee: Guangdong Chuntex Elite Electronic Technology Co Ltd
Current assignee: Guangdong Chuntex Elite Electronic Technology Co Ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-10-21
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a display, including the liquid crystal glazing, light guide plate, reflector plate, backplate, mainboard and the shield cover that set gradually, the mainboard is kept away from be equipped with the ground contact in the one side of backplate, the shield cover is equipped with and is used for contradicting the boss that switches on of ground contact, switch on the boss by the shield cover is close to towards the direction of mainboard is buckled the protrusion and is formed. This display switches on the ground contact of boss in order to conflict on the mainboard through setting up on the shield cover, owing to switch on the boss and be integrated into one piece with the shield cover, so can not increase material cost, still reduced the equipment step simultaneously, and then improved the packaging efficiency.

Description

Display device

Technical Field

The utility model relates to a display.

Background

The existing display needs to use various main boards in the assembling process, each main board is provided with a grounding position, the traditional technical means is that a shielding cover behind the main board and the main board is conducted by using conductive foam or conductive cloth, so that the grounding effect is achieved, but the technical scheme not only can increase the material cost, but also increases the assembling steps, and further reduces the assembling efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the display with the novel structure is convenient for grounding the main board and can also improve the assembly efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a display, is including the liquid crystal glazing, light guide plate, reflector plate, backplate, mainboard and the shield cover that set gradually, the mainboard is kept away from be equipped with ground contact in the one side of backplate, the shield cover is equipped with and is used for contradicting ground contact switch on the boss, switch on the boss by the shield cover is towards being close to the direction of mainboard is buckled the protrusion and is formed.

The shielding case is provided with a first connecting hole, the back plate is bent and protruded towards the direction close to the main plate to form a connecting boss, and the top surface of the connecting boss is provided with a second connecting hole corresponding to the first connecting hole; and a first fastening screw penetrates through the first connecting hole and the second connecting hole so as to fixedly connect the shielding cover with the back plate.

Furthermore, the shielding case comprises a bottom plate and a second flanging which is formed by bending and extending the edge of the bottom plate towards the direction close to the back plate, the second flanging is bent and extended towards the outer side to form a positioning part, a first positioning structure is arranged on the positioning part, and a second positioning structure matched with the first positioning structure is arranged on the back plate.

The liquid crystal display panel further comprises a middle frame, the middle frame is sleeved on the periphery of the back plate, and the liquid crystal glass is fixedly arranged on one side, away from the main plate, of the middle frame; and clamping blocks and clamping grooves matched with the clamping blocks are arranged on the contact surfaces of the side wall of the middle frame and the side wall of the back plate.

Furthermore, the improved backboard comprises a second fastening screw, wherein a third connecting hole is formed in the bottom of the middle frame, a fourth connecting hole is formed in the side wall of the backboard corresponding to the third connecting hole, and the second fastening screw penetrates through the third connecting hole and the fourth connecting hole to enable the middle frame to be fixedly connected with the backboard.

Furthermore, the bottom of the middle frame is bent downwards and protrudes to form a plurality of first concave parts, the side wall of the back plate is provided with second concave parts corresponding to the first concave parts, the third connecting holes are formed in the bottom surfaces of the first concave parts, and the fourth connecting holes are formed in the bottom surfaces of the second concave parts.

Furthermore, a source board is fixedly arranged on one surface of the back plate, which is far away from the liquid crystal glass, the bottom of the liquid crystal glass is connected with the source board through a chip on film, and the chip on film is arranged between two adjacent second concave parts.

Furthermore, the portable electronic device further comprises a protective cover, wherein the protective cover is fixedly connected to the back plate, and the source board is arranged between the protective cover and the back plate.

The decorative strip is arranged on one side, far away from the back plate, of the liquid crystal glass, and the bottom of the decorative strip bends and extends towards the direction close to the protective cover to form a third flanging; the bottom of the protection cover bends and extends towards the direction close to the decorative strip to form a fourth flanging; the decorative strip and the protective cover enclose a U-shaped groove, and the chip on film is arranged on the inner side of the U-shaped groove.

Furthermore, the conduction boss is formed through a stamping process, and long holes with annular openings are formed in the periphery of the conduction boss, so that the conduction boss is in a long arm shape.

The beneficial effects of the utility model reside in that: this display switches on the boss through setting up on the shield cover in order to conflict the ground contact on the mainboard, owing to switch on the boss and shield cover be integrated into one piece, so can not increase material cost, still reduced the equipment step simultaneously, and then improved the packaging efficiency.

Drawings

Fig. 1 is a schematic overall structure diagram of a display according to a first embodiment of the present invention;

FIG. 2 is an enlarged detail view of portion A of FIG. 1;

fig. 3 is a cross-sectional view of a display according to a first embodiment of the present invention;

FIG. 4 is an enlarged detail view of portion B of FIG. 3;

fig. 5 is a schematic structural diagram of a middle frame and a back plate of a display according to a first embodiment of the present invention;

FIG. 6 is an enlarged detail view of section C of FIG. 5;

fig. 7 is a schematic structural view of a decorative strip, a middle frame and a back plate of a display according to a first embodiment of the present invention;

FIG. 8 is an enlarged detail view of portion D of FIG. 7;

fig. 9 is a schematic structural view of a decorative strip and a protective cover of a display according to a first embodiment of the present invention;

FIG. 10 is an enlarged detail view of section E of FIG. 9;

fig. 11 is a schematic structural diagram of a shielding case in a display according to a second embodiment of the present invention.

Description of the reference symbols:

1. liquid crystal glass;

2. a back plate; 21. connecting the bosses; 22. a second positioning structure; 23. a card slot; 24. a second recess; 241. a fourth connection hole;

3. a main board;

4. a shield case; 41. a base plate; 411. conducting the boss; 42. second flanging; 43. a positioning part; 431. a first positioning structure;

51. a first fastening screw; 52. a second fastening screw;

6. a middle frame; 61. a clamping block; 62. a first recess; 621. a third connection hole;

7. a source board; 71. coating a chip on film;

8. a protective cover; 81. a fourth flanging;

9. decorating strips; 91. and a third flanging.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 11, a display includes a liquid crystal glass 1, a light guide plate, a reflector, a back plate 2, a main plate 3, and a shielding case 4, which are sequentially disposed, wherein a ground contact is disposed on a side of the main plate 3 away from the back plate 2, the shielding case 4 is provided with a conducting boss 411 for abutting against the ground contact, and the conducting boss 411 is formed by bending and protruding the shielding case 4 toward a direction close to the main plate 3.

From the above description, the beneficial effects of the present invention are: this display switches on the ground contact on boss 411 in order to conflict mainboard 3 through setting up on shield cover 4, owing to switch on boss 411 and shield cover 4 and be integrated into one piece, so can not increase the material cost, still reduced the equipment step simultaneously, and then improved the packaging efficiency.

Further, the portable electronic device further comprises a first fastening screw 51, a first connecting hole is formed in the shielding case 4, the back plate 2 bends and protrudes towards the direction close to the main plate 3 to form a connecting boss 21, and a second connecting hole is formed in the top surface of the connecting boss 21 and corresponds to the first connecting hole; the first fastening screw 51 passes through the first and second connection holes to fixedly connect the shield can 4 with the back plate 2.

As can be seen from the above description, the fixing and connecting manner of the shielding case 4 and the back plate 2 is convenient and stable, which is beneficial to mass production and manufacturing of the display.

Furthermore, the shielding case 4 includes a bottom plate 41 and a second flange 42 formed by bending and extending the edge of the bottom plate 41 toward the direction close to the back plate 2, the second flange 42 bends and extends toward the outer side to form a positioning portion 43, the positioning portion 43 is provided with a first positioning structure 431, and the back plate 2 is provided with a second positioning structure 22 matched with the first positioning structure 431.

As can be seen from the above description, the first positioning structure 431 and the second positioning structure 22 are matched to facilitate alignment of the shielding case 4 by a worker during installation of the shielding case 4, which is beneficial to improving the assembly efficiency and the assembly precision of the shielding case 4.

Further, the liquid crystal display panel further comprises a middle frame 6, wherein the middle frame 6 is sleeved on the periphery of the back plate 2, and the liquid crystal glass 1 is fixedly arranged on one side, away from the main plate 3, of the middle frame 6; and a clamping block 61 and a clamping groove 23 matched with the clamping block 61 are arranged on the contact surface of the side wall of the middle frame 6 and the side wall of the back plate 2.

As can be seen from the above description, the connection structure of the back plate 2 and the middle frame 6 is simple, and is beneficial to mass production and assembly.

Further, the back plate comprises a second fastening screw 52, a third connecting hole 621 is formed in the bottom of the middle frame 6, a fourth connecting hole 241 is formed in the side wall of the back plate 2 corresponding to the third connecting hole 621, and the second fastening screw 52 penetrates through the third connecting hole 621 and the fourth connecting hole 241, so that the middle frame 6 is fixedly connected with the back plate 2.

As can be seen from the above description, the second fastening screws 52 are provided to connect the middle frame 6 and the backboard 2, so as to further improve the connection stability between the middle frame 6 and the backboard 2.

Further, the bottom of the middle frame 6 is bent downwards and protrudes to form a plurality of first concave portions 62, the side wall of the back panel 2 is provided with second concave portions 24 corresponding to the first concave portions 62, the third connecting hole 621 is arranged on the bottom surface of the first concave portions 62, and the fourth connecting hole 241 is arranged on the bottom surface of the second concave portions 24.

As can be seen from the above description, the first concave portion 62 and the second concave portion 24 are arranged to provide a certain avoidance distance for the end of the second fastening screw 52 extending into the inner side of the back plate 2, so as to prevent the second fastening screw 52 from colliding with the components in the display and further causing damage, which results in the function damage of the display.

Furthermore, a source board 7 is fixedly arranged on one surface of the back plate 2 away from the liquid crystal glass 1, the bottom of the liquid crystal glass 1 is connected with the source board 7 through a chip on film 71, and the chip on film 71 is arranged between two adjacent second concave parts 24.

As can be seen from the above description, the position of the chip on film 71 fully utilizes the excess space between two adjacent second recesses 24, so that the display has a compact structure.

Furthermore, the backboard comprises a protective cover 8, wherein the protective cover 8 is fixedly connected to the backboard 2, and the source board 7 is arranged between the protective cover 8 and the backboard 2.

As can be seen from the above description, the provision of the protective cover 8 prevents the source board 7 from being hit or worn by a foreign object.

Further, the liquid crystal display panel further comprises a decorative strip 9, wherein the decorative strip 9 is arranged on one side, far away from the back plate 2, of the liquid crystal glass 1, and the bottom of the decorative strip 9 is bent and extended towards the direction close to the protective cover 8 to form a third flanging 91; the bottom of the protective cover 8 is bent and extended towards the direction close to the decorative strip 9 to form a fourth flanging 81; the decorative strip 9 and the protective cover 8 form a U-shaped groove, and the chip on film 71 is arranged on the inner side of the U-shaped groove.

From the above description, the decoration strips 9 and the protection covers 8 can effectively prevent the flip chip 71 from being hooked or worn by foreign objects.

Further, the conduction boss 411 is formed by a stamping process, and an annular long hole is formed in the periphery of the conduction boss 411, so that the conduction boss 411 is in a long arm shape.

As can be seen from the above description, the long-arm-shaped conductive boss 411 has strong elasticity, so that a certain pretightening force is kept after the conductive boss 411 collides with the ground contact on the motherboard 3, and the conductive boss 411 is effectively prevented from being separated from the ground contact.

Example one

Referring to fig. 1 to 11, a first embodiment of the present invention is: a display can be widely applied to scenes such as home, office, teaching and the like as image or video display equipment.

As shown in fig. 1, fig. 2 and fig. 4, the display includes liquid crystal glazing 1, light guide plate, reflector plate, backplate 2, mainboard 3 and shield cover 4 that set gradually, mainboard 3 keeps away from be equipped with ground contact in the one side of backplate 2, shield cover 4 is equipped with and is used for conflicting ground contact switch on boss 411, switch on boss 411 by shield cover 4 is towards being close to the direction bending bulge of mainboard 3 forms. Specifically, in this embodiment, the display is a curved-surface screen display; the shield case 4 is integrally formed by a stamping process, and the conduction boss 411 is trapezoidal.

As shown in fig. 2, the display further includes a first fastening screw 51, a first connection hole is formed on the shielding case 4, the back plate 2 is bent and protruded toward a direction close to the main plate 3 to form a connection boss 21, and a second connection hole is formed on a top surface of the connection boss 21 corresponding to the first connection hole; the first fastening screw 51 passes through the first and second connection holes to fixedly connect the shield can 4 with the back plate 2. Specifically, the number of the connecting bosses 21 is four, and the connecting bosses correspond to the corners of the shielding case 4 respectively, the connecting bosses 21 on the shielding case 4 are provided with countersunk bosses, and the bottom surfaces of the countersunk bosses are provided with second connecting holes, so that the first fastening screws 51 are prevented from protruding out of the surface of the shielding case 4 and hooking or rubbing with foreign objects.

As shown in fig. 2, the shielding case 4 includes a bottom plate 41 and a second flange 42 formed by bending and extending an edge of the bottom plate 41 toward a direction close to the back plate 2, the second flange 42 is bent and extended toward an outer side to form a positioning portion 43, the positioning portion 43 is provided with a first positioning structure 431, and the back plate 2 is provided with a second positioning structure 22 matched with the first positioning structure 431. Specifically, in the present embodiment, two positioning portions 43 are provided, the first positioning structure 431 is preferably a U-shaped notch, and the second positioning structure 22 is a cylindrical protrusion corresponding to the first positioning structure 431.

As shown in fig. 5 and 6, the display further includes a middle frame 6, the middle frame 6 is sleeved on the periphery of the back plate 2, and the liquid crystal glass 1 is fixedly disposed on one side of the middle frame 6 away from the main plate 3; and a clamping block 61 and a clamping groove 23 matched with the clamping block 61 are arranged on the contact surface of the side wall of the middle frame 6 and the side wall of the back plate 2. Specifically, a plurality of clamping blocks 61 are arranged on the long side of the top of the middle frame 6 and the short sides of the two sides at intervals, and clamping grooves 23 are arranged on the corresponding positions of the side walls of the back plate 2.

As shown in fig. 8, the display further includes a second fastening screw 52, a third connecting hole 621 is formed at the bottom of the middle frame 6, a fourth connecting hole 241 is formed on the sidewall of the back panel 2 corresponding to the third connecting hole 621, and the second fastening screw 52 passes through the third connecting hole 621 and the fourth connecting hole 241, so that the middle frame 6 is fixedly connected to the back panel 2. Specifically, the third connection holes 621 are provided in plural, the plural third connection holes 621 are arranged at intervals along the long side of the bottom of the middle frame 6, and the fourth connection holes 241 are arranged in one-to-one correspondence with the third connection holes 621.

As shown in fig. 8, the bottom of the middle frame 6 is bent downward to form a plurality of first recesses 62, the side wall of the back panel 2 is provided with second recesses 24 corresponding to the first recesses 62, the third connecting hole 621 is disposed on the bottom surface of the first recesses 62, and the fourth connecting hole 241 is disposed on the bottom surface of the second recesses 24. Specifically, the first recess portions 62 are disposed in one-to-one correspondence with the third connection holes 621, and the second recess portions 24 are disposed in one-to-one correspondence with the fourth connection holes 241. The bottom wall of the second concave part 24 is provided with a fastening boss protruding towards the inner side, and the first connecting hole penetrates through the fastening boss so that a thread with enough length can be arranged in the first connecting hole, and the second fastening screw 52 is ensured to be stably connected.

As shown in fig. 4, a source plate 7 is fixedly disposed on one surface of the back plate 2 away from the liquid crystal glass 1, the bottom of the liquid crystal glass 1 is connected to the source plate 7 through a chip on film 71, and the chip on film 71 is disposed between two adjacent second recesses 24. Specifically, two source boards 7 are symmetrically arranged relative to the back plate 2, and the two source boards 7 are respectively connected with the liquid crystal glass 1 through a plurality of chip on films 71.

As shown in fig. 1 and 4, the display further includes a protective cover 8, the protective cover 8 is fixedly connected to the backboard 2, and the source board 7 is disposed between the protective cover 8 and the backboard 2. Specifically, the protection covers 8 are arranged corresponding to the source boards 7 one by one, and the two protection covers 8 are respectively screwed on the back plate 2.

As shown in fig. 4 and fig. 10, the display further includes a decorative strip 9, the decorative strip 9 is disposed on one side of the liquid crystal glass 1 far from the back plate 2, and the bottom of the decorative strip 9 bends and extends towards a direction close to the protective cover 8 to form a third flanging 91; the bottom of the protective cover 8 is bent and extended towards the direction close to the decorative strip 9 to form a fourth flanging 81; the decorative strip 9 and the protective cover 8 form a U-shaped groove, and the chip on film 71 is arranged on the inner side of the U-shaped groove.

Specifically, the third flange 91 is provided with a fifth connecting hole, and the second fastening screw 52 sequentially passes through the fifth connecting hole, the third connecting hole 621 and the fourth connecting hole 241, so that the decoration strip 9, the middle frame 6 and the back panel 2 are fixedly connected. The third flange 91 is provided with a countersunk head portion bent and protruded inwards, and the bottom surface of the countersunk head portion is provided with a fifth connecting hole, so that the second fastening screw 52 does not protrude out of the bottom surface of the third flange 91, and the second fastening screw 52 is prevented from hooking or rubbing with foreign objects. A claw is arranged at one end of the fourth flanging 81 close to the decorative strip 9, and a clamping groove matched with the claw is arranged on the third flanging 91, so that the decorative strip 9 and the protective cover 8 are fixedly connected to form a U-shaped groove.

Example two

Referring to fig. 11, the second embodiment of the present invention is a further improvement of the shielding case 4 on the basis of the first embodiment, and the difference from the first embodiment is that: the conduction boss 411 is formed by a stamping process, and an annular slot is formed in the periphery of the conduction boss 411, so that the conduction boss 411 is in a long arm shape.

To sum up, the utility model provides a display switches on the ground contact of boss in order to conflict the mainboard through setting up on the shield cover, owing to switch on the boss and shield cover integrated into one piece, so can not increase the material cost, still reduced the equipment step simultaneously, and then improved the packaging efficiency. The first positioning structure and the second positioning structure are matched to facilitate alignment of workers to the position of the shielding case in the process of mounting the shielding case, and the assembly efficiency and the assembly precision of the shielding case are improved. Set up second fastening screw and connect center and backplate, can further improve the steadiness of being connected of center and backplate. Set up first depressed part and second depressed part and can provide certain distance of dodging for second fastening screw passes the one end that stretches into the backplate is inboard, prevent that fastening screw from conflicting and causing the damage to the part in the display, lead to display function to damage. The arrangement position of the chip on film fully utilizes the redundant space between two adjacent second sunken parts, so that the display has a compact structure. The protective cover is arranged to prevent the source board from being collided or abraded by foreign objects. The decorative strip and the protective cover can effectively prevent the chip on film from being hooked or abraded by foreign objects.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a display, is including the liquid crystal glazing, light guide plate, reflector plate, backplate, mainboard and the shield cover that set gradually, the mainboard is kept away from be equipped with ground contact, its characterized in that in the one side of backplate: the shield cover is equipped with and is used for contradicting ground contact switch on the boss, switch on the boss by the shield cover is towards being close to the direction of mainboard is buckled the protrusion and is formed.

2. The display of claim 1, wherein: the shielding case is provided with a first connecting hole, the back plate is bent and protruded towards the direction close to the main plate to form a connecting boss, and the top surface of the connecting boss is provided with a second connecting hole corresponding to the first connecting hole; and a first fastening screw penetrates through the first connecting hole and the second connecting hole so as to fixedly connect the shielding cover with the back plate.

3. The display of claim 2, wherein: the shielding cover comprises a bottom plate and a second flanging formed by bending and extending the edge of the bottom plate towards the direction close to the back plate, the second flanging is bent and extended towards the outer side to form a positioning part, a first positioning structure is arranged on the positioning part, and a second positioning structure matched with the first positioning structure is arranged on the back plate.

4. The display of claim 1, wherein: the liquid crystal glass is fixedly arranged on one side of the middle frame, which is far away from the main board; and clamping blocks and clamping grooves matched with the clamping blocks are arranged on the contact surfaces of the side wall of the middle frame and the side wall of the back plate.

5. The display of claim 4, wherein: the improved backboard is characterized by further comprising second fastening screws, wherein a third connecting hole is formed in the bottom of the middle frame, a fourth connecting hole is formed in the side wall of the backboard corresponding to the third connecting hole, and the second fastening screws penetrate through the third connecting hole and the fourth connecting hole, so that the middle frame is fixedly connected with the backboard.

6. The display of claim 5, wherein: the middle frame bottom is buckled the protrusion downwards and is formed a plurality of first depressed parts, the backplate lateral wall corresponds first depressed part is equipped with the second depressed part, the third connecting hole is located first depressed part bottom surface, the fourth connecting hole is located second depressed part bottom surface.

7. The display of claim 6, wherein: the surface, far away from the liquid crystal glass, of the back plate is fixedly provided with a source plate, the bottom of the liquid crystal glass is connected with the source plate through a chip on film, and the chip on film is arranged between two adjacent second concave parts.

8. The display of claim 7, wherein: the protective cover is fixedly connected to the back plate, and the source board is arranged between the protective cover and the back plate.

9. The display of claim 8, wherein: the decorative strip is arranged on one side, far away from the back plate, of the liquid crystal glass, and the bottom of the decorative strip bends and extends towards the direction close to the protective cover to form a third flanging; the bottom of the protection cover bends and extends towards the direction close to the decorative strip to form a fourth flanging; the decorative strip and the protective cover enclose a U-shaped groove, and the chip on film is arranged on the inner side of the U-shaped groove.

10. The display of claim 1, wherein: the conduction boss is formed through a stamping process, and long holes with annular openings are formed in the periphery of the conduction boss, so that the conduction boss is in a long arm shape.